The GXP2135 is an enterprise-grade IP phone that supports Gigabit speeds and up to 32 virtual BLF/speed-dial keys, making it ideal for busy workers. This Enterprise IP Phone features up to 8 lines/line keys and 4 SIP accounts using a 2.8 inch color display LCD and full HD audio. The GXP2135 includes up to 32 digital, on-screen speed dial/BLF keys to help users be more productive and efficient. This Enterprise IP Phone supports the fastest possible connection speeds with dual Gigabit network ports, features integrated PoE and includes built-in Bluetooth for syncing with mobile devices and Bluetooth headsets. The GXP2135 is the perfect choice for business users looking for a powerful and reliable IP phone with advanced functionality. Audio: - Speakerphone: Yes - Voice codecs: G.711Mu/G.722/G.726/G.729A/G.729B Camera: - Front camera: No Certificates: - Certification: CE: EN55022 Class B; EN55024 Class B;EN61000-3-2; EN61000-3-3;EN60950-1/FCC: Part 15 (CFR 47) Class B/RCM: AS/ACIF S004; AS/NZS CISPR22/24; AS/NZS 60950.1 Design: - Handset type: Wired handset - Mounting: Desk/Wall - Product colour: Black - Product type: IP Phone - Wall mountable: Yes Display: - Display: TFT - Display diagonal: 2.8 - Display resolution: 320 x 240 Management features: - Firmware upgradeable: Yes - Volume control: Digital Network: - Bluetooth: Yes - Ethernet LAN: Yes - Ethernet LAN data rates: 10/100/1000 - Ethernet LAN interface type: Gigabit Ethernet - Quality of Service (QoS) support: Yes - Supported network protocols: SIP RFC3261, TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, DNS (A record, SRV, NAPTR), DHCP, PPPoE, TELNET, TFTP, NTP, STUN, SIMPLE, LLDP, LDAP, TR-069, 802.1x, TLS, SRTP, IPV6 - Wi-Fi: No Operational conditions: - Operating relative humidity (H-H): 10 - 90 - Operating temperature (T-T): 0 - 40 - Storage temperature (T-T): -10 - 60 Packaging content: - AC adapter included: Yes - Ethernet cable: Yes - Manual: Yes - Number of handles included: 1 Phone features: - Call forwarding: Yes - Call hold: Yes - Call park: Yes - Call pick up: Yes - Call return: Yes - Call transfer: Yes - Call waiting: Yes - Conference call: Yes - Full duplex: Yes - Lines quantity: 8 - Number of VoIP accounts: 4 - Phonebook capacity: 2000 - Redialing: Yes - Speed dialling: Yes Ports & interfaces: - DC-in jack: Yes - Ethernet LAN (RJ-45) ports: 1 - RJ-9 ports quantity: 1 Power: - AC adapter input voltage: 100 - 240 - AC adapter output current: 0.5 - AC adapter output voltage: 12 - Power over Ethernet (PoE): Yes Vendor information: - Brand Name: Grandstream - Warranty: 1 - Product.Details.Specifications.Level1: Network - Product.Details.Specifications.Level2: Wired Network - Product.Details.Specifications.Level3: IP Telephony / VOIP